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Ierofanga [76]
2 years ago
8

Question 5 of 5

Mathematics
1 answer:
Allisa [31]2 years ago
6 0

Answer:

I would say C not to sure tho

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in a given classroom the number of girls is 10 greater than number of boys if the ratio of the number of girls to the number of
Xelga [282]

Answer:

a) 35,  b) 25,  c) 60

Step-by-step explanation:

The number of girls is 10 more than the number of boys, so it's a good thing to choose a variable to represent the number of boys.

Number of boys:  b

Number of girls:  b + 10

Ratio of girls:boys is 7:5, so

\frac{b+10}{b}=\frac{7}{5}

"Cross multiply" to get

7b=5(b+10)\\7b=5b+50\\2b=50\\b=25

There are 25 boys.  There are 10 more girls, so the number of girls is 35, and the total number of students is 60.

That's a packed classroom!

8 0
3 years ago
PLEASE HELP I WILL GIVE BRAINLEST.
Korolek [52]

Answer:

The correct answer is 40

Step-by-step explanation:

I took the quiz

5 0
3 years ago
Lily needed to get her computer fixed. She took it to the repair store. The technician at the store worked on the computer for 3
iragen [17]
Answer
456.50=159 + 3.5x
OR
3.5x=456.50-159

Reason
456.50 is the total
159 is for the parts
3.5 is the number of hours

So to find the cost you have to find out how much it cost for the labor by subtracting the total cost from the cost of the parts. To find the cost of labor for each hour you have to divide the total cost of labor by the number of hours used to work on the computer
6 0
3 years ago
Read 2 more answers
BRAINLIEST!!! BRAINLIEST!!! BRAINLiEST!!! PLEASE HELP ME WITH THIS QUESTION AND IF IT'S CORRECT I WILL DEFINITELY GIVE YOU THE B
lora16 [44]

Answer:

161 cm

Step-by-step explanation:

Since 115 cm is 5 boxes, we take 115 and divide it by 5. This will get us the cm of 1 box. 115/5=23

Now we take 23 and multiply it by 7 to get the final height. 23x7=161

5 0
3 years ago
Solve the inequality 2(4x+1)<3(2x-3)
Goryan [66]

Answer:

the inequality is x  <  − 11 /2

4 0
3 years ago
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